monitor will print the received events for:
UDEV - the event which udev sends out after rule processing
KERNEL - the kernel uevent

KERNEL[1256649638.246676] remove   /devices/pci0000:00/0000:00:1d.0/usb2/2-2/2-2:1.0/usb_endpoint/usbdev2.2_ep81 (usb_endpoint)
KERNEL[1256649638.246726] remove   /devices/pci0000:00/0000:00:1d.0/usb2/2-2/2-2:1.0 (usb)
KERNEL[1256649638.246757] remove   /devices/pci0000:00/0000:00:1d.0/usb2/2-2/usb_endpoint/usbdev2.2_ep00 (usb_endpoint)
KERNEL[1256649638.246796] remove   /devices/pci0000:00/0000:00:1d.0/usb2/2-2/usb_device/usbdev2.2 (usb_device)
KERNEL[1256649638.246840] remove   /devices/pci0000:00/0000:00:1d.0/usb2/2-2 (usb)
UDEV  [1256649638.246880] remove   /devices/pci0000:00/0000:00:1d.0/usb2/2-2/usb_endpoint/usbdev2.2_ep00 (usb_endpoint)
UDEV  [1256649638.247300] remove   /devices/pci0000:00/0000:00:1d.0/usb2/2-2/2-2:1.0/usb_endpoint/usbdev2.2_ep81 (usb_endpoint)
UDEV  [1256649638.249335] remove   /devices/pci0000:00/0000:00:1d.0/usb2/2-2/usb_device/usbdev2.2 (usb_device)
UDEV  [1256649638.249384] remove   /devices/pci0000:00/0000:00:1d.0/usb2/2-2/2-2:1.0 (usb)
UDEV  [1256649638.249455] remove   /devices/pci0000:00/0000:00:1d.0/usb2/2-2 (usb)
KERNEL[1256649639.880758] add      /devices/pci0000:00/0000:00:1d.0/usb2/2-2 (usb)
KERNEL[1256649639.883787] add      /devices/pci0000:00/0000:00:1d.0/usb2/2-2/2-2:1.0 (usb)
KERNEL[1256649639.883955] add      /devices/pci0000:00/0000:00:1d.0/usb2/2-2/2-2:1.0/0003:413C:3010.0004 (hid)
UDEV  [1256649639.890482] add      /devices/pci0000:00/0000:00:1d.0/usb2/2-2 (usb)
UDEV  [1256649639.896293] add      /devices/pci0000:00/0000:00:1d.0/usb2/2-2/2-2:1.0 (usb)
UDEV  [1256649639.896800] add      /devices/pci0000:00/0000:00:1d.0/usb2/2-2/2-2:1.0/0003:413C:3010.0004 (hid)
KERNEL[1256649639.902221] add      /devices/pci0000:00/0000:00:1d.0/usb2/2-2/2-2:1.0/input/input6 (input)
UDEV  [1256649639.902265] add      /devices/pci0000:00/0000:00:1d.0/usb2/2-2/2-2:1.0/0003:413C:3010.0004/hidraw/hidraw0 (hidraw)
KERNEL[1256649639.902301] add      /devices/pci0000:00/0000:00:1d.0/usb2/2-2/2-2:1.0/input/input6/mouse0 (input)
UDEV  [1256649639.902338] add      /devices/pci0000:00/0000:00:1d.0/usb2/2-2/2-2:1.0/usb_endpoint/usbdev2.3_ep81 (usb_endpoint)
KERNEL[1256649639.902372] add      /devices/pci0000:00/0000:00:1d.0/usb2/2-2/2-2:1.0/input/input6/event0 (input)
KERNEL[1256649639.902409] add      /devices/pci0000:00/0000:00:1d.0/usb2/2-2/2-2:1.0/0003:413C:3010.0004/hidraw/hidraw0 (hidraw)
KERNEL[1256649639.902441] add      /devices/pci0000:00/0000:00:1d.0/usb2/2-2/2-2:1.0/usb_endpoint/usbdev2.3_ep81 (usb_endpoint)
KERNEL[1256649639.902476] add      /devices/pci0000:00/0000:00:1d.0/usb2/2-2/usb_device/usbdev2.3 (usb_device)
KERNEL[1256649639.902514] add      /devices/pci0000:00/0000:00:1d.0/usb2/2-2/usb_endpoint/usbdev2.3_ep00 (usb_endpoint)
UDEV  [1256649639.902889] add      /devices/pci0000:00/0000:00:1d.0/usb2/2-2/usb_endpoint/usbdev2.3_ep00 (usb_endpoint)
UDEV  [1256649639.905433] add      /devices/pci0000:00/0000:00:1d.0/usb2/2-2/2-2:1.0/input/input6 (input)
UDEV  [1256649639.915455] add      /devices/pci0000:00/0000:00:1d.0/usb2/2-2/usb_device/usbdev2.3 (usb_device)
UDEV  [1256649639.915534] add      /devices/pci0000:00/0000:00:1d.0/usb2/2-2/2-2:1.0/input/input6/event0 (input)
UDEV  [1256649639.921737] add      /devices/pci0000:00/0000:00:1d.0/usb2/2-2/2-2:1.0/input/input6/mouse0 (input)
KERNEL[1256649639.980744] remove   /devices/pci0000:00/0000:00:1d.0/usb2/2-2/2-2:1.0/input/input6/mouse0 (input)
UDEV  [1256649639.981698] remove   /devices/pci0000:00/0000:00:1d.0/usb2/2-2/2-2:1.0/input/input6/mouse0 (input)
KERNEL[1256649639.998190] remove   /devices/pci0000:00/0000:00:1d.0/usb2/2-2/2-2:1.0/input/input6/event0 (input)
UDEV  [1256649639.998913] remove   /devices/pci0000:00/0000:00:1d.0/usb2/2-2/2-2:1.0/input/input6/event0 (input)
KERNEL[1256649640.014483] remove   /devices/pci0000:00/0000:00:1d.0/usb2/2-2/2-2:1.0/input/input6 (input)
KERNEL[1256649640.014527] remove   /devices/pci0000:00/0000:00:1d.0/usb2/2-2/2-2:1.0/0003:413C:3010.0004/hidraw/hidraw0 (hidraw)
KERNEL[1256649640.014603] remove   /devices/pci0000:00/0000:00:1d.0/usb2/2-2/2-2:1.0/0003:413C:3010.0004 (hid)
UDEV  [1256649640.015095] remove   /devices/pci0000:00/0000:00:1d.0/usb2/2-2/2-2:1.0/input/input6 (input)
UDEV  [1256649640.015141] remove   /devices/pci0000:00/0000:00:1d.0/usb2/2-2/2-2:1.0/0003:413C:3010.0004/hidraw/hidraw0 (hidraw)
UDEV  [1256649640.015179] remove   /devices/pci0000:00/0000:00:1d.0/usb2/2-2/2-2:1.0/0003:413C:3010.0004 (hid)